Join Question And Answer Sites

People come to this sites looking for answers. Be the expert and answer their questions. The great thing about this sites it will drive tons of free traffic to your website. I have compose a list of my favorite sites for answer or making questions.
Answers.com
Blurit.com
Anybodyoutthere.com
Funadvice.com
Askville.com
Askmehelpdesk.com
Answerbank.com
Answerly.com
Answerbag.com
Friendfeed.com
Answers.yahoo.com
Ask.com
Allexperts.com